//package com.ptu.spzx.user.mapper;
//
//import com.baomidou.mybatisplus.core.mapper.BaseMapper;
//import com.ptu.spzx.model.entity.system.SysCourseUser;
//import org.apache.ibatis.annotations.Delete;
//import org.apache.ibatis.annotations.Mapper;
//import org.apache.ibatis.annotations.Select;
//
//import java.util.List;
//
//@Mapper
//public interface CourseUserMapper extends BaseMapper<SysCourseUser> {
//    void addCourse(SysCourseUser sysCourseUser);
//
//    @Delete("DELETE FROM sys_course_user WHERE belong_course_id=#{courseId}")
//    void deleteCourseUser(Long curseId);
//
//    @Select("SELECT belong_course_id from sys_course_user WHERE user_id=#{teachId}")
//    List<Long> selectCourseIdByteachId(Long teachId);
//
//    @Select("SELECT user_id from sys_course_user WHERE belong_course_id=#{courseId}")
//    List<Long> selectTeacherIdByCourseId(Long courseId);
//}
